I’ve tried everything in this thread to no avail: http://modthesims.info/t/441595
Every time I open up EIG it loads fine. Then I try to place a pre done lot onto an existing lot and it will process for about 5-10 minutes and then an error saying that “Sims 3 has stopped working”. I can edit empty lots just fine (when placing rabbit holes and such).

I have patched up to 1.67 and am working on windows 10 (I don’t know if that matters?).